KDF® 55 Process Media is a high-purity copper-zinc redox alloy engineered to remove or reduce chlorine and water-soluble heavy metals while controlling scale, bacteria, and algae — even in hot water. As water passes through the media, an electrochemical (redox) reaction converts free chlorine into harmless, water-soluble chloride and reduces dissolved heavy-metal ions to their insoluble forms, where they bond to the media surface.
This drum contains 1/3 cubic foot (57 lbs / 26 kg) of KDF® 55 medium and is ideal for chlorine and heavy-metal reduction in point-of-entry systems, well-water treatment, and as a pre-treatment bed ahead of carbon to extend carbon life. Used alone or blended with granular activated carbon, KDF® 55 protects downstream media and equipment from chlorine attack and microbial fouling.
| SKU / Model | KDF-55 |
| Media Type | KDF® 55 redox process media (high-purity copper-zinc alloy) |
| Primary Function | Chlorine & heavy-metal reduction; scale, bacteria & algae control |
| Net Media Weight | 57 lbs / 26 kg (1/3 cubic foot) |
| Bulk Density | 171 lb/ft³ |
| Operating pH Range | 6.5 – 8.5 |
| Service Life | 6 – 10 years (application dependent) |
| Recyclability | 100% recyclable; no chemical additives |
| Certifications | NSF/ANSI Standard 42; California AB1953 (lead-free); Vermont Act 193 |
| Warranty | 1 Year Limited Warranty |
| Chlorine Reduction | Removes up to 99% of free chlorine via redox conversion to chloride |
| Heavy-Metal Reduction | Removes up to 99% of soluble heavy metals (lead, mercury, nickel, and others) |
| Scale Control | Reduces hardness by converting dissolved calcium & magnesium to insoluble precipitates |
| Microbial Control | Inhibits bacteria & algae growth electrochemically — effective even in hot water |
| Extends Carbon Life | As a pre-bed, protects downstream GAC and equipment from chlorine and fouling |
